docs: def parse_feed(content):
          """
          utility function to parse feed
          """
          feed = feedparser.parse(content)
          articles = []
          for entry in feed['entries']:
              article = {
                  'title': entry['title'],
                  'link': entry['link']
              }
              try:
                  article['media'] = entry['media_content'][0]['url']
              except KeyError:
                  article['media'] = None
              articles.append(article)
          return articles